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Finding the Fourth Proportional to 7,255.50, 10,012.59 and 3,943.50

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Solution

The fourth proportional to 7,255.50, 10,012.59 and 3,943.50 is: 5,442.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,255.50 : 10,012.59 = 3,943.50 : x
  2. Step 2: Convert to fraction form
    7,255.50/10,012.59 = 3,943.50/x
  3. Step 3: Cross multiply
    7,255.50x = 10,012.59 × 3,943.50
  4. Step 4: Simplify right side
    7,255.50x = 39,484,648.67
  5. Step 5: Solve for x
    x = 39,484,648.67/7,255.50
  6. Step 6: Final answer
    x = 5,442.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.